Senate committee substitute makes the following changes to 1st edition. Adds new section to modify Section 3(f) of Chapter 80 of the 1995 Session Laws to require the Chatham County Board of Education to adopt a resolution dividing election District Number Four into two resident districts using population data from the 2010 federal decennial census. Specifies the terms of office of the board members elected in the two new districts. Directs the Chatham Board of Education to revise its resident district boundaries if appropriate to equalize the population among the districts after each subsequent federal decennial census. Prohibits the Chatham Board of Education from revising its election district boundaries until each subsequent federal decennial census. Specifies certain procedural requirements. Makes conforming changes to title.